Washington University Record Volume 9

Washington University Record Volume 9

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...concerned in its production, and especially those which look forward to future requirements. The developments of the past, particularly of the recent past, make it clear that it is dangerous to prophesy, but it is exceedingly interesting to attempt to look ahead; more than that, it is vital to the welfare of future generations that our present power resources be increased and cheapened, if civilization, as we know it, is not to perish from the earth. Everybody knows that solar energy is the ultimate source of the energy we use, and that much the greater part of presentday power development draws upon the energy stored up in coal---the fossil remains of the plants of the Carboniferous period. It has been estimated that at the present time Europe possesses about 700 billion tons of coal, and America about the same amount, with an unknown but finite amount in the little known parts of Asia. The annual production of coal in Europe and America is now well over a billion tons, and this rate of production and consumption is very rapidly increasing. For instance, it is a fact that the single city of Chicago uses annually an amount of electrical energy two-thirds as large as is produced in the same time in the entire United Kingdom. But even if the annual production of coal were to remain stationary at a billion tons a year, it would not follow that the 1400 billion tons of Europe and America would last 1400 years, for the reason that long before that time the mines would be too deep to be worked. Sooner or later, therefore, there will come a time when some other source will have to be developed to replace the fossil solar energy represented by coal. Conservation of natural resources may postpone that time, and it may be still further deferred by...show more

Product details

  • Paperback
  • 189 x 246 x 2mm | 82g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123685411X
  • 9781236854117